Derwent, Derbyshire ?
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fragglehunter http://www.sleepyg.co.uk, Mon 14 Jan 2013, 22:21,
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Ah, sorry,
Completely missed the label. I didn't realise that they were a common structure (although I suppose I don't wander round reservoirs too often).
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Coubs Salty toothpaste, Tue 15 Jan 2013, 20:31,
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